WPF

    public enum tabType
{
    tabbedTextBlock = 1,
    tabbedLinkedBlock = 2
}

public class person
{
    private string firstName;
    private string lastName;
    private int age;
    private tabType type;


    public person()
    {
        // Insert code required on object creation below this point.
    }

    public person(string firstName, string lastName, int age, tabType type)
    {
        this.FirstName = firstName;
        this.LastName = lastName;
        this.Age = age;
        this.tabType = type;
    }

    public string FirstName
    {
        get;
        set;
    }

    public string LastName
    {
        get;
        set;
    }

    public int Age
    {
        get;
        set;
    }

            public tabType tabType
            {
                    get;
                    set;
    }

    public class sampledata : ObservableCollection<person>
{
    public sampledata() :base()
    {
        Add(new person("foo", "fofoo", 23, tabType.tabbedLinkedBlock));
        Add(new person("apple", "fruit", 21, tabType.tabbedTextBlock));
        Add(new person("pineapple", "fruit", 17, tabType.tabbedLinkedBlock));
        Add(new person("banan", "fruit", 47, tabType.tabbedLinkedBlock));
        Add(new person("kiwi", "fruit", 34, tabType.tabbedTextBlock));
    }
}

public partial class MainWindow : Window
{
int i = 0;

public MainWindow()
{
  InitializeComponent();
}

private void newUserControl_Click(object sender, RoutedEventArgs e)
{

  MyUserControl oMyUserControl = new MyUserControl();

  oMyUserControl.Name = "UC" + i;
  i++;

  oMyUserControl.btn1.Click += new RoutedEventHandler(btn1_Click);

  MyStackPanel.Children.Add(oMyUserControl);
}

void btn1_Click(object sender, RoutedEventArgs e)
{
  // Want to get the name of the instance of MyUserControl who call this Handler. 
}
}